APA

The United States Pharmacopeial Convention, . (2000). U.S. Pharmacopoeia 24: National Formulary 19. Rockville: The United States Pharmacopeial Convention.

Chicago

The United States Pharmacopeial Convention, . 2000. U.S. Pharmacopoeia 24: National Formulary 19. Rockville: The United States Pharmacopeial Convention.

Harvard

The United States Pharmacopeial Convention, . (2000). U.S. Pharmacopoeia 24: National Formulary 19. Rockville: The United States Pharmacopeial Convention.

MLA

The United States Pharmacopeial Convention, . U.S. Pharmacopoeia 24: National Formulary 19. Rockville: The United States Pharmacopeial Convention. 2000.